Bump ws from 7.3.0 to 7.4.6 in /examples/testing (#93)

Bumps [ws](https://github.com/websockets/ws) from 7.3.0 to 7.4.6.
- [Release notes](https://github.com/websockets/ws/releases)
- [Commits](websockets/ws@7.3.0...7.4.6)

Signed-off-by: dependabot[bot] <[email protected]>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Jared Nance <[email protected]>

Author: dependabot[bot]